The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 23, 2019

Filed:

Apr. 19, 2016
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Qingzhen Guo, Humble, TX (US);

James Galford, Missouri City, TX (US);

Weijun Guo, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 5/10 (2006.01); G01N 23/05 (2006.01); G01N 29/265 (2006.01); G01N 21/53 (2006.01); G01N 33/38 (2006.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
G01N 23/05 (2013.01); G01N 21/532 (2013.01); G01N 29/265 (2013.01); G01N 33/383 (2013.01); E21B 47/124 (2013.01); G01V 5/10 (2013.01);
Abstract

Methods, systems, and computer program products for identifying annular space materials calculate a near-to-far ('N/F') neutron count ratio from neutron count rates detected by detectors located near to and far from a neutron source, respectively. The N/F neutron count ratio may then be used along with formation porosity to provide an estimation of the type of material that may be present in the annular space.


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